How is thread forming done?

In fact, there are many methods, mainly including thread rolling, thread rolling, tapping, etc. Among them, thread rolling and thread rolling are mainly used to manufacture external threads, and tapping is used to manufacture internal threads.

Thread rolling and thread rolling are threads obtained by extruding materials, which are used to manufacture external threads, such as bolt threads. The processing method of rolling the blank between the two washboards into a spiral groove when the two washboards move relative to each other.

The thread rolling and shrinking process replaces the original turning process, which not only saves materials, reduces production costs, but also reduces labor costs, and more importantly, makes the threads sharper and greatly improves efficiency!

Tapping is to screw the tap into the bottom hole to be drilled with a certain torque to process the internal thread. It is important to choose the right lubricant in tapping. Threads are obtained by extruding or cutting material for the manufacture of internal threads. Such as the thread of a nut.

2. equipment required

Thread rolling machine, thread rolling wheel, thread rolling machine, thread rolling plate, thread tapping machine, thread tapping, etc.

3. Common thread processing methods

Tapping: The tapping process is that the tap first rotates forward for cutting, and then reverses when it reaches the bottom of the thread, leaving the workpiece, cutting in a very narrow space and discharging the chips.

Turning: Use indexable inserts for turning. For triangular threads commonly used in production, the shape of the cutting part of the thread turning tool should be consistent with the axial section of the thread.

Extrusion processing: The extrusion tap is screwed into the pre-drilled hole to extrude the material in the axial and radial directions, thereby forming a unique toothed thread profile.

Thread milling: The threaded end mill generally descends to the bottom of the threaded hole first, approaches the workpiece by means of helical interpolation, rotates 360 degrees along the threaded hole, rises a pitch in the Z-axis direction, and then leaves the workpiece.

It turns out that there are so many particulars about small threads. Different workpieces, different materials, and different precision requirements, the equipment used is also completely different, and tailoring is the most suitable.

Post time: Jun-29-2022